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1. 发明申请

US20110007606A1 Underwater Surveillance 审中-公开
标题翻译：水下监视
公开(公告)号：US20110007606A1
公开(公告)日：2011-01-13
申请号：US12918289
申请日：2009-02-18
申请人： Thomas Edgar Curtis
发明人： Thomas Edgar Curtis
IPC分类号： G01S15/00 , H04B11/00
CPC分类号： G01S15/04 , G01S15/104 , G01S15/42 , G08B13/1609 , G08B31/00 , G10K11/346
摘要： A counter-terrorism underwater surveillance system for detecting swimming intruders includes a sonar array 20 comprising a plurality of sensor elements which both transmit and receive acoustic signals. Power amplifiers 22 generate electric transmit signals which are converted to acoustic form for transmission by the sonar array 20. Incoming acoustic signals, including echo data from any intruder in the water, are received by the sonar array 20 and passed to a data acquisition subsystem 24, which digitises the data for processing. The digitised data is passed to a beamforming subsystem 26 which forms defined beams from omni-element data. A detection processing subsystem 28 then extracts signals from noise and reverberation and passes these to a display processing subsystem 30 which defines tracks from the intruder echo data. Finally, intruder images and tracks are displayed on a display subsystem 32. The beamforming subsystem processes outputs of the sonar array subsystem by means of a pseudo-circular convolution technique thereby to form defined beams.
摘要翻译：用于检测游泳入侵者的反恐水下监视系统包括声纳阵列20，其包括发送和接收声信号的多个传感器元件。功率放大器22产生被转换为声学形式以便由声纳阵列20传输的电传输信号。包括来自水中任何入侵者的回波数据的入射声信号由声纳阵列20接收并被传送到数据采集子系统24 ，数字化数据进行处理。数字化数据被传送到波束形成子系统26，其从全元数据形成定义的波束。检测处理子系统28然后从噪声和混响中提取信号，并将它们传送到显示处理子系统30，显示处理子系统30从入侵者回波数据定义轨迹。最后，入侵者图像和轨道显示在显示子系统32上。波束形成子系统通过伪循环卷积技术处理声纳阵列子系统的输出，从而形成定义的波束。

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